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US 12,571,773 B2Granted
Method of evaluating tank, and evaluation device for tank
AssigneeToyota Jidosha Kabushiki Kaisha
InventorYuta Harada
Life of this patent
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Abstract
A high-pressure tank is detected to rupture before the rupture of the tank with high accuracy. The pressure when the indicator obtained based on measured acoustic emission or sound is at least a threshold value is defined as a pressure just before a rupture.
Claims4
A method of evaluating a tank, the method comprising:
- measuring acoustic emission or sound while applying pressure to the tank;
- and
- obtaining a pressure just before a rupture based on the measured acoustic emission or sound, wherein
- the pressure just before the rupture is
- a pressure when an increasing rate of waveform duration is at least a threshold value, the waveform duration being obtained by the measured acoustic emission.
2 more elements
An evaluation device for a tank, the evaluation device comprising:
- an acoustic emission sensor arranged on the tank;
- and
- an arithmetic unit acquiring acoustic emission data from the acoustic emission sensor to carry out an operation, wherein
- waveform duration based on the acoustic emission data to carry out the operation such that a pressure when an increasing rate of the waveform duration is at least a certain value is defined as the pressure just before a rupture.
1 more element
Dependencies are inferred from the claim text.